| Gaillac to Novi di Modena | 449.46 mi (723.34 km) |
| Gaillac to Novi Ligure | 345.42 mi (555.90 km) |
| Gaillac to Nuoro | 454.21 mi (730.98 km) |
| Gaillac to Occhiobello | 482.79 mi (776.97 km) |
| Gaillac to Oderzo | 534.61 mi (860.37 km) |
| Gaillac to Oggiono | 387.37 mi (623.41 km) |
| Gaillac to Olbia | 438.95 mi (706.42 km) |
| Gaillac to Oleggio | 350.58 mi (564.21 km) |
| Gaillac to Olgiate Comasco | 369.75 mi (595.06 km) |
| Gaillac to Olgiate Olona | 362.81 mi (583.89 km) |
| Gaillac to Omegna | 346.53 mi (557.68 km) |
| Gaillac to Opera | 373.92 mi (601.77 km) |
| Gaillac to Oppeano | 466.62 mi (750.95 km) |
| Gaillac to Orbassano | 288.35 mi (464.05 km) |
| Gaillac to Orbetello | 479.81 mi (772.18 km) |
